Effect of cadmium and calcium treatments on phytochelatin and glutathione levels in citrus plants
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Altres documents de l'autoria: López Climent, María Fernanda; Arbona, Vicent; Perez-Clemente, Rosa Maria; I Zandalinas, Sara; Gomez-Cadenas, Aurelio
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2508
comunitat-uji-handle3:10234/6999
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INVESTIGACIONMetadades
Títol
Effect of cadmium and calcium treatments on phytochelatin and glutathione levels in citrus plantsAutoria
Data de publicació
2014Editor
WileyISSN
1435-8603; 1438-8677Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://onlinelibrary.wiley.com/doi/10.1111/plb.12006/pdfParaules clau / Matèries
Resum
Industry residues, phosphate fertilisers and wastewater as a source of irrigation have considerably increased levels of heavy metals in the soil, mainly cadmium (Cd2+). To test the effects of a calcium (Ca2+) treatment ... [+]
Industry residues, phosphate fertilisers and wastewater as a source of irrigation have considerably increased levels of heavy metals in the soil, mainly cadmium (Cd2+). To test the effects of a calcium (Ca2+) treatment on Cd2+ accumulation and plant tolerance to this heavy metal, plants of two citrus genotypes, Cleopatra mandarin (CM) and Carrizo citrange (CC), were watered with increasing concentrations of Cd2+, and phytochelatin (PC) and glutathione (GSH) content were measured. Both genotypes were able to synthesise PCs in response to heavy metal intoxication, although CM seems to be a better Cd2+ excluder than CC. However, data indicate that CC plants had a higher capacity for regenerating GSH than CM plants. In this context, the effects of Ca2+ treatment on Cd2+ accumulation, plant survival and PC, GSH and oxidised glutathione (GSSG) content were assessed. Data indicate that treatment with Ca2+ had two positive effects on citrus physiology: it reduced Cd+2 uptake into roots and also increased GSH content (even in the absence of Cd2+). Overall, the data indicate that although Cd2+ exclusion is a powerful mechanism to avoid heavy metal build-up into photosynthetic organs, the capacity to maintain optimum GSH levels to feed PC biosynthesis could also be an important factor in stress tolerance. [-]
Publicat a
Plant Biology 16 (2014) 79–87Drets d'accés
© 2013 German Botanical Society and The Royal Botanical Society of the Netherlands.
"This is the accepted version of the following article: López-Climent, M. F., Arbona, V., Pérez-Clemente, R. M., Zandalinas, S. I., Gómez-Cadenas, A. (2014), Effect of cadmium and calcium treatments on phytochelatin and glutathione levels in citrus plants. Plant Biology, 16: 79–87. doi: 10.1111/plb.12006, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/plb.12006/pdf
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info:eu-repo/semantics/openAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
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